Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria

Polycyclic Aromatic Hydrocarbons (PAHs) levels in four commonly consumed smoked fish species from markets in Southern Nigeria were assessed to evaluate possible human health risks associated with consumption. Varying levels of PAH congeners were observed in the fish tissues with the highest total co...

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Main Authors: Isioma Tongo, Ozekeke Ogbeide, Lawrence Ezemonye
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:Toxicology Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S221475001630110X
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author Isioma Tongo
Ozekeke Ogbeide
Lawrence Ezemonye
author_facet Isioma Tongo
Ozekeke Ogbeide
Lawrence Ezemonye
author_sort Isioma Tongo
collection DOAJ
description Polycyclic Aromatic Hydrocarbons (PAHs) levels in four commonly consumed smoked fish species from markets in Southern Nigeria were assessed to evaluate possible human health risks associated with consumption. Varying levels of PAH congeners were observed in the fish tissues with the highest total concentration of PAHs in Scomber scombrus. High concentrations of benzo(a)pyrene was observed in Clarias gariepinus and Ethmalosa fimbriata with values above the guideline value of 0.05 mg/kg. The Dietary Daily Intake (DDI) value for total PAHs (âPAHs) was highest for S. scombrus while the DDI value for the total carcinogenic PAHs (âCPAHs) was highest for E. fimbriata. Carcinogenic human health risk assessment using carcinogenic toxic equivalents (TEQ), indicated that consumption of E. fimbriata has a higher potential to cause carcinogenic risks. TEQ values for all the fish species were however, below the estimated screening value (SV) of 3.556 mg/kg, while the estimated cumulative excess cancer risk (ECR) for E. fimbriata and C. gariepinus and PAH4 index for all the assessed fish species exceeded threshold values indicating potential carcinogenic risk from consumption. Keywords: PAH, Smoked fish, Human health risk, Risk indices
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spelling doaj.art-a0d2b4c6cd7243c4b5c83c9f042d2b592022-12-22T01:03:22ZengElsevierToxicology Reports2214-75002017-01-0145561Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern NigeriaIsioma Tongo0Ozekeke Ogbeide1Lawrence Ezemonye2Corresponding author.; Laboratory of Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, NigeriaLaboratory of Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, NigeriaLaboratory of Ecotoxicology and Environmental Forensics, Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, NigeriaPolycyclic Aromatic Hydrocarbons (PAHs) levels in four commonly consumed smoked fish species from markets in Southern Nigeria were assessed to evaluate possible human health risks associated with consumption. Varying levels of PAH congeners were observed in the fish tissues with the highest total concentration of PAHs in Scomber scombrus. High concentrations of benzo(a)pyrene was observed in Clarias gariepinus and Ethmalosa fimbriata with values above the guideline value of 0.05 mg/kg. The Dietary Daily Intake (DDI) value for total PAHs (âPAHs) was highest for S. scombrus while the DDI value for the total carcinogenic PAHs (âCPAHs) was highest for E. fimbriata. Carcinogenic human health risk assessment using carcinogenic toxic equivalents (TEQ), indicated that consumption of E. fimbriata has a higher potential to cause carcinogenic risks. TEQ values for all the fish species were however, below the estimated screening value (SV) of 3.556 mg/kg, while the estimated cumulative excess cancer risk (ECR) for E. fimbriata and C. gariepinus and PAH4 index for all the assessed fish species exceeded threshold values indicating potential carcinogenic risk from consumption. Keywords: PAH, Smoked fish, Human health risk, Risk indiceshttp://www.sciencedirect.com/science/article/pii/S221475001630110X
spellingShingle Isioma Tongo
Ozekeke Ogbeide
Lawrence Ezemonye
Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
Toxicology Reports
title Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
title_full Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
title_fullStr Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
title_full_unstemmed Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
title_short Human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in smoked fish species from markets in Southern Nigeria
title_sort human health risk assessment of polycyclic aromatic hydrocarbons pahs in smoked fish species from markets in southern nigeria
url http://www.sciencedirect.com/science/article/pii/S221475001630110X
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